Some good reasons why you and your family need Island Tribe's protection today. Certified as SPF 29 after 40 minutes in the water?. This means that after 40 minutes being submerged in a spa bath the product has lost less than 3% of its SPF rating. So your body will survive 40 minutes plus another 29 times the time your skin would naturally burn. This product will not sting your eyes when you are actively involved in sport on a hot sunny day. This is a promise! Island Tribe’s SPF 30 Gel sunblock is endorsed by major sportsmen like, Herman Chalupsky (SA Canoeing), Jason Ribbink (SA Surfing), Ant Stot (SA Canoeing) , Daryl Batho (SA Canoeing) , David Weare (SA Surfing). Pierre Tostee (International surf Photographer), Gig Cilliers (World Bodyboard Champion), Josh Schmeltzer (SA Surfing). Application. It goes a long way so don’t apply as much as you would a traditional white lotion! Island Tribe Gel Sunblock has been endorsed by the Cancer Association of South Africa (CANSA). http://www.cansa.co.za/